Hex #6a81a3 or rgb(106,129,163) in RGB space is the tint of blue. It has hue angle of 215.79 degrees, value = 64 and saturation = 35. #6a81a3 can be obtained by mixing 4 colors: 1 drop of red, 4 drops of magenta, 5 drops of cyan, 2 drops of green.
Nearest safe hex - #669999. Below you can see the block with #6a81a3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6a81a3 to the mixer and play with it.